#1 rumble n. [rumbling, grumble, grumbling] a loud low dull continuous noise; "they heard the rumbling of thunder". wn
#2 rumble v. [grumble] make a low noise; "rumbling thunder". wn
#3 rumble v. [grumble, growl] to utter or emit low dull rumbling sounds; "he grumbled a rude response"; "Stones grumbled down the cliff". wn
#4 rumble n. a servant's seat (or luggage compartment) in the rear of a carriage. wn
#5 rumble n. [gang fight] a fight between rival gangs of adolescents. wn
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